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Posted to users@tomcat.apache.org by Lingagiri <vi...@chase.com> on 2011/01/14 13:49:07 UTC
RE: Session replication fails on ReplicationValve invocation
How did you monitored that "cluster membership up and working via multicast
and the two nodes add each other as replication targets."
David Nillesen wrote:
>
> I think I may have sorted the problem. Would that have occurred if I was
> asking for a webpage without a context? i.e. just hitting some undefined
> area?
>
> Thanks,
> Dave
>
> --
> David Nillesen
> UNIX Systems Administrator
> Ph: + 61 2 6773 2112
>
> -----Original Message-----
> From: Martin Gainty [mailto:mgainty@hotmail.com]
> Sent: Thursday, 18 June 2009 12:06 PM
> To: Tomcat Users List
> Subject: RE: Session replication fails on ReplicationValve invocation
>
>
> Hello Dave
>
> that line from ReplicationManager is getManager()
> Manager manager = request.getContext().getManager();
>
> i would check to make sure the Manager node in /context.xml
>
> <!-- The contents of this file will be loaded for each web application -->
> <Context>
>
> <!-- Default set of monitored resources -->
> <WatchedResource>WEB-INF/web.xml</WatchedResource>
>
> <!-- Uncomment this to disable session persistence across Tomcat
> restarts -->
> <Manager pathname="/" />
>
> <!-- Uncomment this to enable Comet connection tacking (provides
> events
> on session expiration as well as webapp lifecycle) -->
> <!--
> <Valve
> className="org.apache.catalina.valves.CometConnectionManagerValve" />
> -->
> </Context>
>
> all explained here
> http://www.scribd.com/doc/15490833/Tomcat-The-Definitive-Guide-by-OReilly-Media
>
> Cheers,
> Martin
> ______________________________________________
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>
>> From: dnillese@une.edu.au
>> To: users@tomcat.apache.org
>> Date: Thu, 18 Jun 2009 10:24:20 +1000
>> Subject: Session replication fails on ReplicationValve invocation
>>
>> Hi,
>> I'm currently trying to establish a cluster of tomcat
>> 5.5.27 servers to deploy sakai in, so I'm stuck on version 5.5. It is not
>> an option to upgrade to tomcat 6 which from all accounts has much better
>> session replication.
>>
>> I have cluster membership up and working via multicast and the two nodes
>> add each other as replication targets. When I try to establish a
>> connection to the server from my web browser to the default port of 8080
>> I get this neat error in my catalina.out:
>
>>
>> ERROR: An exception or error occurred in the container during the request
>> processing (2009-06-17 16:43:49,545
>> http-172.31.3.37-8080-Processor5_org.apache.catalina.connector.CoyoteAdapter)
>> java.lang.NullPointerException
>> at
>> org.apache.catalina.cluster.tcp.ReplicationValve.invoke(ReplicationValve.java:348)
>>
>> I'll put full errors and configs at the bottom of the email. The errors
>> occurs regardless of whether I access an empty/nonexistent context or the
>> servlet-examples which are currently installed.
>>
>> The servers are multi homed with 3 interfaces. Eth0 is
>> the primary public interface, eth1 is my iSCSI network and eth2 is the
>> backend cluster network. All neatly VLANd from each other in seperate
>> subnets. Multicast membership works, I can see the packets arriving via
>> tcpdump and the membership propagation is occurring.
>> I have tried binding the receivers to both public and private interfaces
>> but have had no luck. The receivers are up and appear to be functional. I
>> can telnet to them and when I enter gibberish into the console it tell
>> me I am sending malformed headers.
>
>> By using tcpdump and netstat I can see that neither tomcat instance is
>> originating a sender session to connect to the other servers receiver.
>>
>> I have tried fastsyncqueue and pooled style senders from the
>> documentation. Currently configured for pooled as it looked the simpler
>> config to diagnose. jvmRoute is configured via -D options passed to java
>> as a lot of our configs are done dynamically so as to have a single
>> server.xml across the cluster environments. We have a shared disk backend
>> system to enable this.
>>
>> Any suggestions for diagnosis, help, fixes or otherwise would be very
>> much appreciated.
>>
>> Regards,
>> Dave
>>
>> Log file and startup:
>> INFO: The Apache Tomcat Native library which allows optimal performance
>> in production environments was not found on the java.library.path:
>> /apps/java/jdk1.5.0_19/jre/lib/amd64/server:/apps/java/jdk1.5.0_19/jre/lib/amd64:/apps/java/jdk1.5
>> .0_19/jre/../lib/amd64 (2009-06-17 16:40:36,874
>> main_org.apache.catalina.core.AprLifecycleListener)
>> INFO: Initializing Coyote HTTP/1.1 on http-172.31.3.37-8080 (2009-06-17
>> 16:40:37,019 main_org.apache.coyote.http11.Http11BaseProtocol)
>> INFO: Initialization processed in 1400 ms (2009-06-17 16:40:37,021
>> main_org.apache.catalina.startup.Catalina)
>> INFO: Set JAAS app name ENGINE (2009-06-17 16:40:37,114
>> main_org.apache.catalina.realm.JAASRealm)
>> INFO: Starting service SERVICE (2009-06-17 16:40:37,126
>> main_org.apache.catalina.core.StandardService)
>> INFO: Starting Servlet Engine: Apache Tomcat/5.5.27 (2009-06-17
>> 16:40:37,133 main_org.apache.catalina.core.StandardEngine)
>> INFO: Cluster is about to start (2009-06-17 16:40:37,133
>> main_org.apache.catalina.cluster.tcp.SimpleTcpCluster)
>> INFO: Start ClusterSender at cluster ENGINE:type=Cluster with name
>> ENGINE:type=ClusterSender (2009-06-17 16:40:37,430
>> main_org.apache.catalina.cluster.tcp.ReplicationTransmitter)
>> INFO: Setting cluster mcast soTimeout to 1000 (2009-06-17 16:40:37,440
>> main_org.apache.catalina.cluster.mcast.McastService)
>> INFO: Sleeping for 4000 milliseconds to establish cluster membership
>> (2009-06-17 16:40:37,460
>> main_org.apache.catalina.cluster.mcast.McastService)
>> INFO: membership mbean registered (ENGINE:type=ClusterMembership)
>> (2009-06-17 16:40:41,478
>> main_org.apache.catalina.cluster.mcast.McastService)
>> INFO: XML validation disabled (2009-06-17 16:40:41,504
>> main_org.apache.catalina.core.StandardHost)
>> INFO: ContextListener: contextInitialized() (2009-06-17 16:40:43,318
>> main_org.apache.catalina.core.ContainerBase.[ENGINE].[localhost].[/servlets-examples])
>> INFO: SessionListener: contextInitialized() (2009-06-17 16:40:43,318
>> main_org.apache.catalina.core.ContainerBase.[ENGINE].[localhost].[/servlets-examples])
>> INFO: JvmRouteBinderValve started (2009-06-17 16:40:43,391
>> main_org.apache.catalina.cluster.session.JvmRouteBinderValve)
>> INFO: Starting Coyote HTTP/1.1 on http-172.31.3.37-8080 (2009-06-17
>> 16:40:43,467 main_org.apache.coyote.http11.Http11BaseProtocol)
>> INFO: JK: ajp13 listening on /172.31.3.37:8009 (2009-06-17 16:40:43,640
>> main_org.apache.jk.common.ChannelSocket)
>> INFO: Jk running ID=0 time=0/99 config=null (2009-06-17 16:40:43,648
>> main_org.apache.jk.server.JkMain)
>> INFO: Find registry server-registry.xml at classpath resource (2009-06-17
>> 16:40:44,411 main_org.apache.catalina.storeconfig.StoreLoader)
>> INFO: Server startup in 7485 ms (2009-06-17 16:40:44,506
>> main_org.apache.catalina.startup.Catalina)
>> INFO: Replication member
>> added:org.apache.catalina.cluster.mcast.McastMember[tcp://172.31.3.34:9015,SAKAINEW,172.31.3.34,9015,
>> alive=11] (2009-06-17 16:40:50,160
>> Cluster-MembershipReceiver_org.apache.catalina.cluster.tcp.SimpleTcpCluster
>> )
>> ERROR: An exception or error occurred in the container during the request
>> processing (2009-06-17 16:43:44,786
>> http-172.31.3.37-8080-Processor4_org.apache.catalina.connector.CoyoteAdapter)
>> java.lang.NullPointerException
>> at
>> org.apache.catalina.cluster.tcp.ReplicationValve.invoke(ReplicationValve.java:348)
>> at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
>> at
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
>> at
>> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
>> at
>> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
>> at
>> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
>> at
>> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
>> at java.lang.Thread.run(Thread.java:595)
>> ERROR: An exception or error occurred in the container during the request
>> processing (2009-06-17 16:43:49,545
>> http-172.31.3.37-8080-Processor5_org.apache.catalina.connector.CoyoteAdapter)
>> java.lang.NullPointerException
>> at
>> org.apache.catalina.cluster.tcp.ReplicationValve.invoke(ReplicationValve.java:348)
>> at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
>> at
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
>> at
>> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
>> at
>> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
>> at
>> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
>> at
>> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
>> at java.lang.Thread.run(Thread.java:595)
>>
>> server.xml
>>
>> <Server port="7992" shutdown="SHUTDOWN">
>>
>> <!-- TOMCAT 5 and 5.5-->
>> <Listener
>> className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="off"
>> />
>> <Listener
>> className="org.apache.catalina.mbeans.ServerLifecycleListener" />
>> <Listener
>> className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"
>> />
>> <Listener
>> className="org.apache.catalina.storeconfig.StoreConfigLifecycleListener"/>
>>
>> <!-- JNDI -->
>> <GlobalNamingResources>
>> </GlobalNamingResources>
>>
>> <Service name="SERVICE">
>>
>> <!-- HTTP connector -->
>> <Connector address="${ClusterIP}"
>> port="8080" maxHttpHeaderSize="8192" protocol="HTTP/1.1"
>> maxThreads="50"
>> minSpareThreads="5" maxSpareThreads="10"
>> enableLookups="false"
>> redirectPort="8443" acceptCount="100"
>> connectionTimeout="0"
>> disableUploadTimeout="true" />
>>
>> <!-- AJP connector -->
>> <Connector address="${ClusterIP}"
>> port="8009" protocol="AJP/1.3"
>>
>> connectionTimeout="600000"
>> enableLookups="false"
>> redirectPort="8443" />
>>
>> <!-The Engine -->
>> <Engine name="ENGINE"
>> defaultHost="localhost">
>> <Host name="localhost"
>>
>> appBase="webapps"
>>
>> unpackWARs="true"
>>
>> autoDeploy="false"
>>
>> xmlValidation="false"
>>
>> xmlNamespaceAware="false">
>>
>> <Alias>sakai-new.une.edu.au</Alias>
>>
>> <Alias>espresso.une.edu.au</Alias>
>>
>> <Alias>latte.une.edu.au</Alias>
>> </Host>
>> <Cluster
>> className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"
>>
>> manager.expireSessionsOnShutdown="false"
>>
>> doClusterLog="true"
>>
>> clusterLogName="clusterlog">
>>
>> <Membership
>>
>> className="org.apache.catalina.cluster.mcast.McastService"
>>
>> mcastAddr="228.0.0.4"
>>
>> mcastClusterDomain="SAKAINEW"
>>
>> mcastPort="45564"
>>
>> mcastFrequency="1000"
>>
>> mcastDropTime="30000"
>>
>> recoveryCounter="10"
>>
>> recoveryEnabled="true"
>>
>> recoverySleepTime="5000" />
>> <Receiver
>>
>> className="org.apache.catalina.cluster.tcp.ReplicationListener"
>>
>> tcpListenAddress="${ClusterIP}"
>>
>> tcpListenPort="9015"
>>
>> tcpSelectorTimeout="100"
>>
>> tcpThreadCount="5"/>
>>
>> <Sender
>>
>> className="org.apache.catalina.cluster.tcp.ReplicationTransmitter"
>>
>> replicationMode="pooled"
>>
>> autoConnect="true"
>>
>> maxPoolSocketLimit="10"
>>
>> keepAliveTimeout="60000"
>>
>> keepAliveMaxRequestCount="-1"
>>
>> waitForAck="true" />
>>
>> <ClusterListener
>> className="org.apache.catalina.cluster.session.ClusterSessionListener" />
>>
>> <ClusterListener
>> className="org.apache.catalina.cluster.session.JvmRouteSessionIDBinderListener"
>> />
>> <Valve
>> className="org.apache.catalina.cluster.tcp.ReplicationValve"
>>
>> filter=".*\.gif;.*\.js;.*\.css;.*\.png;.*\.jpeg;.*\.jpg;.*\.htm;.*\.html;.*\.txt;"
>>
>> primaryIndicator="true" />
>> <Valve
>> className="org.apache.catalina.cluster.session.JvmRouteBinderValve"
>>
>> enabled="true" />
>> </Cluster>
>> </Engine>
>> </Service>
>> </Server>
>>
>>
>> David Nillesen
>> UNIX Systems Administrator
>> University of New England
>> +61 2 6773 2112
>>
>
> _________________________________________________________________
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